Low power solenoid driver circuit

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...

Reexamination Certificate

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Details

C361S140000, C361S160000

Reexamination Certificate

active

10838597

ABSTRACT:
The present invention provides a system and method for controlling a solenoid that ensures accurate timing between the enabling of the driving circuit and the activation of the solenoid, while simultaneously providing a two energy level driving scheme to reduce power consumption. The present invention utilizes a single enable signal and supplies the solenoid two different energy levels, a higher “set” level and a lower “hold” level. The generation of these two levels is based on the enabling signal and guarantees that the higher “set” level is present when the solenoid is activated, thereby minimizing undesirable timing jitter.

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patent: 01/48776 (2001-07-01), None

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